Aftermarket Alarm Help

gto

gto

Track Ready
Moderator
Location
Los Angeles, CA
Car
05 FX35 RWD
LA area
Anyone here install, or know of a good place for me to get an additional alarm system integrated & installed clean & affordable to the factory system.
Not looking for every bell and whistle, but mainly a tilt / motion sensor & glass breakage detection addition added on. Maybe a Paging system as an option, but I'm thinking not entirely necessary. Also, is there a way to keep the seat memory integrated with new key fobs, or a way to keep the old ones & just piggyback. I'm thinking that a new system entirely might be easier? Want to keep the factory immobilization feature intact also. BTW, I'm non-tech.

any suggestions as to brand & model would also be helpful to me.
thx
 
definatley... the factory alarm has several trigger points, one may be a hood opening or something along those lines, would have to look at a diagram but what's involved is adding whatever sensor you want, then tapping it's output trigger to an input triger of the oe alarm... should be easy to do this really...
 
So maybe I dont need to bring it to Al & Eds? Set me up buddy & tell me how to do it in Layman's terms :wub:
 
I'll poke around at diagrams & tell you what to do...

all alarm sensors are simple, they get 12v & ground, & then the trigger output is a ground also... all you have to do is power it & hook the trigger wire(usually green) to a circuit that triggers the factory alarm... I'll dig later & see...
 
here is where an additional sensor(s) can be connected too. basically the bcm is looking for a ground trigger & ad'll sensors can provide triggers to the circuit the factory system is already monitoring, for example, a tilt sensor for towing or jacking up the car can send it's output to the bcm at the hood pin switch, or a door pin switch, so the fx thinks the hood or a doors been opened, it don't know it's being jacked up or towed, but the end result is it still triggers it's flashing lights & blows its horn either way, you can connect several, glass, tilt, shock, microwave field disturbance etc... but ALWAYS isolate everything with diodes, & I would wire the sensors up so that the sensor isn't powered when the ign is on so it doesn't tell the car that a hood or dor is open when your driving, but that's very easy to do.... I would also do everything to the hood pin wire so no interior light is activated even on a trip... but you gotta wire to under the hood for that...



the bcm is located in the left kick panel & easier to wire too, you could tap the door wires there, but a trigger of an aux sensor will then also make an interior light come on...


the bottom of each of these schematics has a block digram of the plugs in the bcm & ipdm and the corrisponding pinout locations, so you can see where the wire goes to the plug, any decent install shop can handle this easily or if your a little handy it's not something very difficult to do yourself too maybe...

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Man, I was trying to read a wiring diagram when messing with my hot water heater last week, but this makes my head spin even more. LoL
 
To be quite honest, me too.
I think I'm gonna go with johnmax's advise on this one. If you were on the left coast, we could hang, drink a case of heiny, install some sensors, add some mirror blinkers and then hit the trailz with our bikes ;)
All kidding aside though, it will be helpful when I add the alarm, likely with a shop.
 
turbocad6 said:
I would wire the sensors up so that the sensor isn't powered when the ign is on so it doesn't tell the car that a hood or dor is open when your driving, but that's very easy to do.... I would also do everything to the hood pin wire so no interior light is activated even on a trip...
Click to expand...

If the sensor is powered off when the ignition is on, you will not have interior lights randomly turning on while driving. However, there is one problem with connecting a shock sensor's output to a door trigger and that is when you shut a door, the shock sensor detects the vibration and sends an alarm trigger signal that causes the car to think a door is opened, preventing you from locking the car for 2-3 seconds until the car finally realizes that the doors are actually closed (this occurs when the interior lights go off). The only way around this is to use the hood switch and if I were doing it again, I would. Downside is it is more difficult to neatly run a wire from under the driver's side dash to the hood switch in the forward right side of the engine compartment.

I was going to do a write-up last year on my shock sensor install since it was more in-depth than what others have done (including the powering off with ignition on, and a switch in-line with the sensor's power supply so I can control when the sensor is active) but never got around to finishing it. It really is simple, just time consuming. I think it took me about five hours altogether just to install a shock sensor. :xd:
 
if you hook the ground side of the sensor up to an ign lead, it will make the sensor power up when the ign is off, that ign lead will go to ground & provide a ground for the sensor, when the ign turns on, the ground goes away so the sensor is off. the sensor will not work of course when it has power on both the power & ground leads, but this doesn't damage the sensor, just makes it work when the car is off & not work when it is on.

when you close a door, the sensor will delay your being able to lock the doors imediately, but I would only expect a delay of a second or 2 maybe... if you pres the button realy fast after closing a door you will just get the beep bep bep like a door is open, but a second or 2 later it'l be fine to lock. I agree the best way is to go to the hood circiut, but yeah, like you said, harder to wire...

these are very simple diagrams, whats confusing or what don't you guy's get?
 
I've just been thinking about adding something to the OEM one as well, since one of my buds just had their Sidekick broken into right in front of our office!

Can we just pick any brand that has door sensors and glass break then add it on, or would we have to look for something specific?
 
Is it easier to upgrade the stock alarm with new sensors, or would it be simpler with an aftermarket alarm. All I'm looking for is something that is as close to actually purchasing an aftermarket alarm with out having to go over board with the options. I don't need all of the options that most alarms offer. I just want to make sure no on runs off with my car, or at least slow them down.

A friend told me to look into Code Alarm. I know there are other "more high end" alarms on the market but I don't see the need to spend lot of $$$ for an alarm that has fancy bells and whistles and a brand name. I'm looking for something that give me the bang for the buck.

Simply put I need some help deciding on what to buy without breaking my pocket in the process. Still have to change the actuators on the doors so it's putting a limit on how much I want to spend on this project.

Any help would be appreciated.
 
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